Featured Research

from universities, journals, and other organizations

Studies provide insight into key oat chemical

Date:
February 9, 2010
Source:
USDA/Agricultural Research Service
Summary:
Agricultural scientists are helping to increase understanding about the environmental factors that regulate production of avenanthramides -- metabolites with potent antioxidant properties, in oat grain.

ARS chemist Mitchell Wise is studying environmental factors that influence how oats produce avenanthramide, a potent antioxidant that is part of what gives oats a reputation for health benefits.
Credit: Photo by Stephen Ausmus.

Studies conducted by Agricultural Research Service (ARS) scientists are helping to increase understanding about the environmental factors that regulate avenanthramide (Avn) production in oat grain.

Related Articles


Avns, metabolites with potent antioxidant properties, are one reason oats have been widely touted for their many health benefits. The specific purpose of Avns inside the oat plant is still largely unknown, but previous studies have found an increased production of Avns in oat leaves when the plant is attacked by a fungus. This finding leads researchers to believe that Avns help oat plants fight off these fungi.

Chemist Mitchell Wise with the ARS Cereal Crops Research Unit in Madison, Wis., teamed up with fellow chemist Doug Doehlert with the ARS Red River Valley Agricultural Research Center in Fargo, N.D., to examine the correlation between disease pressure and Avn concentration in the oat grain.

The scientists tested 16 oat cultivars and two breeding lines at three locations in North Dakota over a two- year period. They found that oat plants with the strongest crown rust resistance typically had the highest Avn concentrations in environments where crown rust occurred. They also found that Avn production is likely influenced by additional environmental factors, because not all cultivars with strong crown rust resistance produced high Avn concentrations. Details of this study can be found in the scientific journal Cereal Chemistry.

Still, according to Wise, the results suggest that oat breeders -- taking into account crown rust pressure during growth -- can select certain cultivars for enhanced production of Avns.

Wise is also further researching the biosynthesis of Avns in the laboratory. He developed a suspension culture system from oat shoot tissue in which Avns are produced in response to a chemical that mimics fungal infection. This useful tool can be used for more detailed investigation into how certain Avns are produced.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. The original article was written by Stephanie Yao. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Studies provide insight into key oat chemical." ScienceDaily. ScienceDaily, 9 February 2010. <www.sciencedaily.com/releases/2010/02/100201113752.htm>.
USDA/Agricultural Research Service. (2010, February 9). Studies provide insight into key oat chemical. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2010/02/100201113752.htm
USDA/Agricultural Research Service. "Studies provide insight into key oat chemical." ScienceDaily. www.sciencedaily.com/releases/2010/02/100201113752.htm (accessed October 25, 2014).

Share This



More Plants & Animals News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Black Bear Cub Goes Sunday Shopping

Black Bear Cub Goes Sunday Shopping

Reuters - Light News Video Online (Oct. 23, 2014) Price check on honey? Bear cub startles Oregon drugstore shoppers. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Dances With Wolves in China's Wild West

Dances With Wolves in China's Wild West

AFP (Oct. 23, 2014) One man is on a mission to boost the population of wolves in China's violence-wracked far west. The animal - symbol of the Uighur minority there - is under threat with a massive human resettlement program in the region. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins